Question 1 2 pts (TCO 1) The mechanism that allows you to combine data and the b

ID: 3854616 • Letter: Q

Question

Question 1
2 pts
(TCO 1) The mechanism that allows you to combine data and the behavior for that data into a single unit is called a(n) _____.

member

class

object

field

Question 2
2 pts
(TCO 1) Which of the following would be a more appropriate choice for a method in a Fork class?

Eat()

Color()

Material()

Bend()

Question 3
2 pts
(TCO 1) Which of the following statements is/are true?

C. The state of an object should not be hidden.

None are true

A. Objects communicate through message passing.

All are true

D. Implementation details should be visible through the interface of a class.

A and C

B. An object is necessary to be defined before you can create a class.

Question 4
2 pts
(TCO 1) Which of the following would be a more appropriate choice for a data member in a Button class?

width

show

click

resize

Question 5
2 pts
(TCO 1) The following is/are object-oriented programming feature(s).

Encapsulation

Abstraction

All of the above

Inheritance

None of the above

Question 6
2 pts
(TCO 8) Most professional coding standards use _____ for data members.

Attribute case

no specific naming convention

Pascal case

Camel case

Question 7
2 pts
(TCO 1) Examine the ClockType class definition. How many class members does it contain?

class ClockType

{
public :
void setTime(int, int, int);
int getTime();
void printTime();
private:
int hr;
int min;
int sec;
}

2

An average of 5 because (7 + 3) / 2 = 5

9

3

6

Question 8
2 pts
(TCO 1) Assume we have two objects of a class. How many copies of the class's attributes and methods exist in the instantiated objects?

Zero, the objects do not have attributes and methods

Three copies

Only one copy, both objects always share it

Two copies, each object has its own copy

Question 9
2 pts
(TCO 1) Both _____ and _____ allow for code reuse and the building of more complex systems.

None of the above

UML diagrams; serialization

messaging; object behaviors

inheritance; composition

Question 10
2 pts
(TCO 1) By default, all members of a class are _____.

private

internal

public

protected

unfriendly

Explanation / Answer

Question 1
2 pts
(TCO 1) The mechanism that allows you to combine data and the behavior for that data into a single unit is called a(n) _____.

member

class

object

field

------CLASS as the mechanism of binding of data and the behavior for that data into a single unit is Encapsulation and Class is a Example of Encapsulation.

------------------------------------------------------------------------------------------------------------------------------------------------------------

Question 2
2 pts
(TCO 1) Which of the following would be a more appropriate choice for a method in a Fork class?

Eat()

Color()

Material()

Bend()

-----Eat() as a class contains methods of a similar kind or behaviour.. And Eat() is the most appropriate one that relates to fork class.

------------------------------------------------------------------------------------------------------------------------------------------------------------

------A and C are true .. B is wrong as you create the object after the class is created and object itself is the instance of a class.

D is also incorrect as if Implementation details are visible through the interface of a class it is against the OOPS concept of Abstraction.

---------------------------------------------------------------------------------------------------------------------------------------------------------

Question 4
2 pts
(TCO 1) Which of the following would be a more appropriate choice for a data member in a Button class?

width

show

click

resize

----the correct answer is WIDTH as it is only the data member or property.. other like show,click,resize are METHODS OF THE CLASS NOT DATA MEMBERS
---------------------------------------------------------------------------------------------------------------------------------------------------

Question 5
2 pts
(TCO 1) The following is/are object-oriented programming feature(s).

Encapsulation

Abstraction

All of the above

Inheritance

None of the above

ANSWER IS ALL OF THE ABOVE.. Abstraction,
Inheritance,Encapsulation are the base or pillars of the OOP paradigm.

----------------------------------------------------------------------------------------------------------------------------------------------------------Question 6
2 pts
(TCO 8) Most professional coding standards use _____ for data members.

Attribute case

no specific naming convention

Pascal case

Camel case

Answer is CamelCase... Java,C# etc use CamelCase for Datamembers.. Exapmle: int readData;

--------------------------------------------------------------------------------------------------------------------------------------------------

Question 7
2 pts
(TCO 1) Examine the ClockType class definition. How many class members does it contain?

class ClockType

{
public :
void setTime(int, int, int);
int getTime();
void printTime();
private:
int hr;
int min;
int sec;
}

2

An average of 5 because (7 + 3) / 2 = 5

9

3

6

ANSWER IS 3 . datamembers are private:
int hr;
int min;
int sec;

they store data ,so are called datamembers.

other options are methods of a class not datamembers.

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--Correct answer is two copies,each object has its own copy as object is created using the constructor and it initializes the datamembers and methods of a class and assigns them to the object being created.

-----------------------------------------------------------------------------------------------------------------------------------------------------

correct option is inheritance and compositon.

---------------------------------------------------------------------------------------------------------------------------------------------------------Question 10
2 pts
(TCO 1) By default, all members of a class are _____.

private

internal

public

protected

unfriendly

Correct answer can only be given on the basis of the language asked about..

In c++,data members are Private,by default.

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Question 1 2 pts (TCO 1) The mechanism that allows you to combine data and the b

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